Rotary grain pan



R. C. HIMIVIEL.

ROTARY GRAIN PAN.

APPLlcATloN mso SEPT. 1 l. |920.

Patented Ja11.3,1922f.

QUUUUCOIU .vvvovoviv MJNR I m/NI KI l.

vide a pan with perforations at one end,

ROBERT C. HIMJIEL, OF TOPEKA, ILLINOIS.

ROTARY GRAIN PAN.

Speeication of Letters Patent. n i

Application filed September 1,1, 1920. Serial No. 409,595.

rators of threshing machines for agitating the grain which leaves the straw which is conveyed by the carrier cleaner, and to cause the passage of the grain through perforations in the iioor of the pan at a point adjacent the blower and over and upon the blower shoe, so that the dust and motes may be blown therefrom.

. Furthermore, the invention aims to provide a device of this kind wherein the lioor of the grain pan is covered with sheet iron,

and wherein the pan is disposed well up under the cylinder and the cleaner carrier of the threshing machine, extending from the cylinder to a position adjacent to and terminating over the cleaning shoe of the blower, so that when the .material leaves the cylinder and is conveyed by the cleaner carrier, the grain will fall upon the pan, and be agitated, and fed toward one end thereof,

lwhere it will drop upon the shoe of the blower, andcleaner at the same time.

Still further the invention has for its purpose to provide means travelling over the face of the pan to convey the grain to one endthereof and deliver it to the shoe of the blower.

Additionally the invention aims to proat a position over the shoe of the blower, so that the grain will pass through the perforations in a very thin column, `thereby permitting the motes and the dirt to be more efficiently removed by the blower.

`Also the perforations decrease in number from one end of the pan, for a distance of substantially'one-third of the pan, so that as the grain'passes through the perforations, the quantity thereof will be .heavier at the end of the pan, than at the point where the Vperforations begin, thereby facilitating the cleaning of the grain. l

. A device of this kind is more compact, and necessitates less power to be operated, and will also eliminatethe waste, which lis more ,or less considerable in machines heretofore used.

Another purpose of the perfor'ations at one end of the floor of the rotary pam-is to relieve the accumulation of grain at the end of the pan, and to oer the draught of wind the advantage` of a very thin column of falling grain, which may be more readily cleaned by the wind from the blower.

lVhile the design and construction at present illustrated and set forth is deemed preferable, it is obvious that as a result of a reduction of the invention to a more practical form for commercial purposes, the invention may be susceptible of changes, and the right to these changes is claimed, provided they are comprehended within the scope of what is claimed..

The invention comprises further features and combination of parts, as will be hereinapplied and constructed inaccordance with the invention, and

Patented Jan. 3, 1922.

Figure 2 is a plan view of the grain pan.

Referringl to the drawings, l designates the frame, and 2 denotes the cleaner carl rier, which is illustrated, set forth and claimed in the co-pending application of R. C. Himmel, filed eleventh day of September, 1920, Serial No. 409,594. This cleaner carrier is operated through the belt 3 andthe pulley connections` 4 with `-the cylinder beater 5.l

Disposed well up under the cylinder and the 'beater carrier is the improved rotary grain' pan 6, which comprises a floor 7 covf ered with sheet metal preferably iron as indicated at 8.v This floor extends vtransversely between and connects the sides of the grain Aseparator space of the threshing machine. Also the ioor extends longitudinally of the space and under thecylinder and the Y cleaner carrier. Y

Adjacent the fends of the 'lloor are the shaitsgand 10, which carry the sprockets 11and12, about which the sprocket chains 13 travel, nected` by the transverse bars or rods 14:, which may `be anyV suitable shape in cross section, and are designed to travel over the face of the Hoor: when the, chains. are in moof tion, therebyagitating the grain, and carrying it to one end of the pan. The shaft carries an additional sprocket 15, about which Vso the sprocket chain 16 travels.` This sprocket chain `16 is in turn connected'to one of the end sh'ats'l of the 'cleaner carrier 2, and Y since power is transmitted from thecylinder to the cleaner carrier,motion is imparted to the sprocket chains 13, throughcthe medium of the chain 16.

f The blower 18 is disposed under one end Y 'of theoor ofthegrain pan, at a point ad- Y jacent one end thereof, and terminates in the usual cleaning shoe 19'. llhe loor of the grain pan from the end adjacent the shaft 1Y0 isprovided with periorations 20, decreasing in number from the end of ythe floor adjacent the shaft 10, for ay distance substantially onethird Vthe length of Vthe floor so as not only to` relieve the accumulation of grain at one end Vof the pan, bntalso lto permit of the advantaffe ot a thincolumny of fallin Grain at one end of the pan, in order to' beV more eliiciently l:cleaned by theV wind from the blower 18; a y

The pertorations in the latter kportion of' fthe grain pan floor are to allow the shelled .wheatfand .the partly liberated berries to fall through into the cleaning shoe, before reaching the rear end, where it` would otherwise fall in a mass into the shoe, thereby making complete separation and cleaning impossible, or at least'much lmore dillicult,

Furthermore this plan or construction `causes aV distribution ofthe discharged grain into the cleaning shoe over a larger area, making theoperation of the wind more 'el'ectivel Alsothe reason for making the perforais very considerable. y

The inventionhaving beenset Vforth, what y isgclaimed as new and `useful is lll Inu threshing machinesagrainshoe, a grainy panfloon'f and means rtravelling overY These sprocket. chains are con-YV and in contact with the top and bottom faces of the pan, for conveying the'grain dropped upon` the floor, to the other end of the pan, where it is delivered to the grain shoe, one end oi the Vfloor of the grain pan having transverse rows oit perforations extending from the end of the pan over the shoe, foraV `distance ysubstantially one-third the length of theV grain pan, thereby affording means for permitting of the passage o'f the grain from the panto and upon the shoe of Athe blower, the perforations decreasing in numbei' in said transverse rows from theV dis- 'charge end of the grain pan floor, toward the other end of the grain pan floor. y

2. InV combination, ay grain pan floor, a grain shoefunder oneY end of `thepan,-the

end of the panover the blower shoe hav ing a plurality of transverse rows of apel'.-

tures, and means travelling over and in contact with the top Vand bottom'faces of lthe floor of the pan orcarrying they grain and agitating thesame to cause ythe grain to pass through j the perforations, said per# vforatio'ns decreasing in number in said transverse rows from the discharge end to a point where the vperorations terminate.

8. In threshing machines, a grain shoe, a

grain pan floor, one end of the floor of the grain pan having transverse rows of perforations extending from the end of the pan over the shoe for a distanceY substantially one-third the length of the grain'pan, there- Vloyalfording means for permitting passage of the grain from the pan to rand upon the shoe or theV blower, the perforations decreasing' in number in saidtransverse rowsfrom the discharge end of the grain pan floor, to-

ward the other end of the grain pan floor, an endless means travelling in contact with the upper and lower surfaces of the floor for conveying the Vgrain, dropped upon Vthe floor,to

theotherend of the pan, where it is delivered to the grain shoe, said conveyingv means adapted to'engage'the grain as it passes through the perforations, assisting in feeding the grain Ytherethrough and toward the support of the shoe,Y f4. In threshing machines, agrain shoe,-a

grain pan floor disposed upon a horizontal c plane, the floor' of which comprising'V a body, oneend ofiwhich 'having transverse rows of perforations andfbeing positioned overf the shoe, said perforations being ar ranged from the end of the pan Vfor a distance substantially one-third the 'length of the pans, therebyaffording means for perto and upon the shoe of the blower, the perfof rations decreasing in number in said transkverse rows from the discharge .end of the grain pan floor, toward the .otherV end of the grain pan floor, and an'endless conveyor having its opposing moving parts travelling mitting of the passage of ygrain from the pan"4 Y over und in Contact With the upper and under surfaces of the body of said floor, for oonif'eying the grain dropped upon the floor to the other end of the pan, Where it is delivered to the grain shoe, said conveyor having transverse members adapted to engage with the grain passing through the perforations, to assist in feeding and pulling the grain through the shoe toward the blower thereof.

In testimony whereof I hereunto aiix my l0 signature.

ROBERT C. HIMMEL. 

